NO reduction by semi-coke and tailing combined catalyst

Abstract

The combined catalyst of semi-coke and tailing were used to study the NO reduction rate and CO production in the laboratory fixed-bed reactor. The experimental results indicate that the combined denitration method of semi-coke and tailing has significantly better NO conversion rate, CO production, and N2selectivity than denitration of semi-coke alone. The increase in reaction temperature and the introduction of O2, CO2, and SO2 increased the effect of the combined coke-tailing catalytic denitration to varying degrees. The combined catalytic denitration effect of semi-coke and magnetic separation tailing was superior to the combined catalytic denitration effect of semi-coke and rare-earth tailing.

Keywords

• Semi-coke
• Rare-earth tailing
• Magnetic separation tailing
• Combined denitration